Submission #1098950

#TimeUsernameProblemLanguageResultExecution timeMemory
1098950ohadBoarding Passes (BOI22_passes)C++14
5 / 100
2 ms604 KiB
#include <iostream> #include <vector> #include <cmath> #include <iomanip> #include <stdio.h> using namespace std; typedef long double ld; int main() { string a; cin >> a; int size = a.length(); cin >> size; ld b = size / 2; ld c = (size + 1) / 2; ld x = ((c * (c-1)) +(b*(b-1))) / ld(4); cout << fixed << setprecision(6) << x; }
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